Delta Witness MCP Server

by 15998194110 Your server? Claim it

local only

Delta Witness runs on your own machine — the client starts it, so there is no endpoint to ping. 77 installs a week from npm. Last commit 27 Oct 2026.

Paid Capture and Guard tools for public-source observations before autonomous actions.

Installs per day peak 157 · avg 19 · +42% w/w

a month agotoday

Installs / week

npm · delta-witness-mcp

Stars

16 open issues

27 Oct 2026

Last commit

4 releases in 90 days

Apache-2.0

License

TypeScript

Nothing serious here today

Today is the operative word: we check Delta Witness every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add delta-witness -- npx -y delta-witness-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "delta-witness": {
      "command": "npx",
      "args": [
        "-y",
        "delta-witness-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.delta-witness]
command = "npx"
args = ["-y", "delta-witness-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "delta-witness": {
      "command": "npx",
      "args": [
        "-y",
        "delta-witness-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "delta-witness": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "delta-witness-mcp"
      ]
    }
  }
}

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Delta Witness — questions

Answers built from our own checks of this server.

Why is there no uptime for Delta Witness?

Delta Witness runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package delta-witness-mcp was installed 77 times last week.

How do I connect Delta Witness?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls delta-witness-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Delta Witness?

The npm package delta-witness-mcp was installed 77 times in the last week. Week over week that is +42%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Delta Witness open source?

Yes — it is published under the Apache-2.0 licence, written in TypeScript, 0 stars on GitHub and 16 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.